39799998 has 48 divisors (see below), whose sum is σ = 102211200. Its totient is φ = 11370456.

The previous prime is 39799987. The next prime is 39800011. The reversal of 39799998 is 89999793.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2448 + ... + 9251.

It is an arithmetic number, because the mean of its divisors is an integer number (2129400).

Almost surely, 2^39799998 is an apocalyptic number.

39799998 is an abundant number, since it is smaller than the sum of its proper divisors (62411202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39799998 is a wasteful number, since it uses less digits than its factorization.

39799998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11723 (or 11711 counting only the distinct ones).

The product of its digits is 9920232, while the sum is 63.

The square root of 39799998 is about 6308.7239597243. The cubic root of 39799998 is about 341.4242389998.

The spelling of 39799998 in words is "thirty-nine million, seven hundred ninety-nine thousand, nine hundred ninety-eight".